What is the low beam headlight bulb size for a 2007 Buick Terraza?

The 2007 Buick Terraza uses a H11 LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2007 Buick Terraza?

The high beam bulb size for the 2007 Buick Terraza is H11 LED.

Why are my 2007 Buick Terraza headlights dim?

Dim headlights on a 2007 Buick Terraza can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H11 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2007 Buick Terraza fog light?

The 2007 Buick Terraza uses a LED Fog Light bulb for the fog light position.

Is the 2007 Buick Terraza single or dual beam?

The 2007 Buick Terraza uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2007 Buick Terraza?

Yes, the 2007 Buick Terraza comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H11 LED LED conversion kit for the low beams.

Does the 2007 Buick Terraza have fog lights?

Yes, the 2007 Buick Terraza takes a LED Fog Light bulb for the fog light position.

How do I change the headlight on a 2007 Buick Terraza?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old H11 LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2007 Buick Terraza?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved H11 LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2007 Buick Terraza headlights?

A pair of halogen H11 LED bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2007 Buick Terraza?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the H11 LED position are available as direct plug-and-play replacements.

This vehicle is part of the 2005–2007 Buick Terraza generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2007 Buick Terraza

What Size Bulbs Does a 2007 Buick Terraza Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2007 Buick Terraza Have?

The 2007 Buick Terraza utilizes a refined lighting configuration featuring 13 distinct bulb positions. It features an extensive lighting system powered by a halogen-based setup where a single H11 LED dual-filament bulb handles both low and high beam duties within the same reflector. This model belongs to the late years of the Terraza's 2005-2007 production span.

Can You Put LED Bulbs in a 2007 Buick Terraza?

Upgrading to LED is one of the most effective ways to modernize your Buick's appearance and safety profile. Since your Terraza uses a single H11 LED bulb for both high and low beams, ensure your chosen LED kit is "dual-beam" compatible. This allows the LED circuitry to mimic the two-filament design of the original halogen bulb. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2007 Buick Terraza Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H11 LED	Buy H11 LED →
High Beam	H11 LED	Buy H11 LED →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	3157NA LED	Buy 3157NA LED →
Turn Signal Rear	3157K LED	Buy 3157K LED →
Dome Light	562	Buy 562 →
License Plate	192	Buy 192 →
Map Light	192	Buy 192 →
Parking Light	3157NA	Buy 3157NA →
Reverse Light	3157K	Buy 3157K →
Trunk Light	562	Buy 562 →